Nextcloud 18 pb avec Document-Server

I have this message when i clic on Button Save on configuration page OnlyOffice
“Erreur durant la tentative de connexion (cURL error 7: Failed to connect to mysite port 4443: Connection refused:Connection refused (see”
or if i tried to edit an document (word, excel…) with OnlyOffice, the file download but not open…
I have this configuration:
Dedian 10+ NextCloud 18+DocumentServer on the same Server.

We need more informations.
Did you set up OnlyOffice with Document server application ? Or did you install document server with the “classical” method (with apache) ?

Hello, i installed with Document Server Application.
my log : method":“PUT”,“url”:"/index.php/apps/onlyoffice/ajax/settings/address",“message”:"HealthcheckRequest on check error: cURL error 7: Failed to connect to …

Fichier hosts mis le fqdn avec mon ip local, it works fine

Tu arrives à accéder à NextCloud en dehors de onlyoffice ? Quels sont les paramètres de l’application Onlyoffice (dans les paramètres administrateur de NextCloud)